The Breathing Apparatus,self-Contain, cataloged under National Stock Number 4240-01-439-5937, is classified within Federal Supply Class 4240 (No Item Name Available) of the Fire Fighting, Rescue, and Safety Equipment group. The primary manufacturer of record is Ocenco Inc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4240-01-439-5937 |
| Primary Part Number | M-20.2 |
| Item Name | Breathing Apparatus,self-Contain |
| FSC / FSG | 4240 / 42 — No Item Name Available |
| Manufacturer | Ocenco Inc |
| Status | ACTIVE |
| Special Test Features | ITEMS ARE BEING CODED AS CRITICAL TO INSURE SOURCE INSPECTION WILL BE PERFORMED AT THE POINT OF MANUFACTURE, PRIOR TO MATERIAL RECEIPT BY THE US NAVY OR OTHER DOD COMPONENTS. THESE ITEMS ARE PIECE PARTS OR END ITEMS IN SUPPORT OF VITAL MILITARY HARDWARE NECESSARY TO SUSTAIN THE SUCCESSFUL MISSION OF THE SHIPS, SUBMARINES, AND SHORE STATIONS OF THE US NAVY. CRITICAL FEATURES INCLUDING, BUT NOT LIMITED TO, DIMENSIONS, TOLERANCES/CLEARANCES, ELECTRONIC CHARACTERISTICS, AND METALLURGICAL PROPERTIES WILL BESPECIFIED FOR GOVERNMENT Q AR (QUALITY ASSURANCE REPRESENTATIVES) TO INSURE THE HIGHEST POSSIBLE DEGREE OF QUALITY AND RELIABILITY OF THESE PARTS BEING DELIVERED UNDER NAVICP CONTRACTS |
| Criticality Code Justification | SPCL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4240-01-439-5937 is a Breathing Apparatus,self-Contain, manufactured by Ocenco Inc, classified under FSC 4240 (No Item Name Available). Status: active.
NSN 4240-01-439-5937 has 2 cross-referenced part numbers: 10065840 (Nimikkeistokeskus Ncb Finland), M-20.2 (Ocenco Inc).
There are 9 known substitutes for 4240-01-439-5937: 3110-00-155-6710, 3110-00-159-9071, 6145-00-508-4709 and 6 more. Verify interchangeability with system specifications before substitution.
Key specifications for M-20.2: Special Test Features: ITEMS ARE BEING CODED AS CRITICAL TO INSURE SOURCE INSPECTION WILL BE PERFORMED AT THE POINT OF MANUFACTURE, PRIOR TO MATERIAL RECEIPT BY THE US NAVY OR OTHER DOD COMPONENTS. THESE ITEMS ARE PIECE PARTS OR END ITEMS IN SUPPORT OF VITAL MILITARY HARDWARE NECESSARY TO SUSTAIN THE SUCCESSFUL MISSION OF THE SHIPS, SUBMARINES, AND SHORE STATIONS OF THE US NAVY. CRITICAL FEATURES INCLUDING, BUT NOT LIMITED TO, DIMENSIONS, TOLERANCES/CLEARANCES, ELECTRONIC CHARACTERISTICS, AND METALLURGICAL PROPERTIES WILL BESPECIFIED FOR GOVERNMENT Q AR (QUALITY ASSURANCE REPRESENTATIVES) TO INSURE THE HIGHEST POSSIBLE DEGREE OF QUALITY AND RELIABILITY OF THESE PARTS BEING DELIVERED UNDER NAVICP CONTRACTS; Part Name Assigned by Controlling Agency: EMERGENCY ESCAPE BREATHING DEVICE; Criticality Code Justification: SPCL; Special Features: QUICKLY DONNED IN SECONDS-SIMPLY UNLATCH THE CASE, PULL OUT THE UNIT, AND INSERT THE MOUTHPIECE AND NOSE CLIP; THE ATTACHED HOOD CAN BE DONNED AT ANY TIME DURING THE ESCAPE; CERTIFIED FOR 15 YEARS SERVICE LIFE; MAINTENANCE FREE FOR 15 YEARS-ONLY VISUAL INSPECTIONS BY SHIPBOARD PERSONNEL ONCE EVERY TWO YEARS; THE SEALED WATERTIGHT CASE PROTECTS AGAINST HARST MARINE CONDITIONS;SUPERIOR PERFORMANCE WITH AUTOMATIC ACTIVATION, COMPLETE PROTECTION FROM LIFE THREATENING ATMOSPHERES AND THE HIGHEST RESPIRATORY PROTECTION FACTOR AVAILABLE; TYPICAL PERFORMANCE DURATION IS BETWEEN 15 AND 32 MINUTES. 4 total characteristics are documented in the Federal Logistics Information System.